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By the end of 1948, AT&T commenced the wider use of the system with the cutover of new crossbar switching systems for toll-dialing in New York and Chicago, [4] which resulted in the handling of about ten percent of all Bell System long-distance calling by Operator Toll Dialing. [5]
In the United States, local carriers have been responsible for distributing telephone numbers to individuals and businesses since AT&T split up into local and long-distance carriers as a result of demonopolization. Orders to change long-distance carriers would be submitted to them, and the local carrier would make the change.
The General Toll Switching Plan was a systematic nationwide effort by the American Telephone and Telegraph Company (AT&T) of organizing the telephone toll circuits and cable routes of the nation, and of streamlining the operating principles and technical infrastructure for connecting long-distance telephone calls in North America. [1]
A local exchange is generally either an exchange within one's own LATA or in an immediately adjacent LATA. A call that is neither local nor long-distance is called a local toll call. A local exchange carrier normally sells package deals that include local and local toll calls. Local calls are customarily billed in by the call, or in blocks of ...
AT&T was probably, according to internal employees, involved in this Sound Surveillance System . After completion, AT&T began commercial operations in cable laying for communications in 1955. [15] The implementation of cables assured local and long-distance telephone or data services would provide revenue for the company. [16]
After this purchase, SBC adopted the better-known AT&T name and brand, with the original AT&T Corporation still existing as the long-distance landline subsidiary of the merged company. [38] The current AT&T Inc. claims the original AT&T Corporation's history (dating to 1877) as its own, [ 39 ] but retains SBC's pre-2005 corporate structure and ...
A telephone card, calling card or phone card for short, is a credit card-size plastic or paper card used to pay for telephone services (often international or long-distance calling). It is not necessary to have the physical card except with a stored-value system; knowledge of the access telephone number to dial and the PIN is sufficient.
Companies such as MCI Communications began to offer long-distance service in direction competition to AT&T. [7] With falling costs on long-distance service, regulators decided to reallocate the increasing profit on long-distance telecommunication to fund subsidies to make local telephone connection more affordable. [8]